package com.example.controller;

import org.apache.shiro.SecurityUtils;
import org.apache.shiro.authc.IncorrectCredentialsException;
import org.apache.shiro.authc.UnknownAccountException;
import org.apache.shiro.authc.UsernamePasswordToken;
import org.apache.shiro.subject.Subject;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.ResponseBody;


/**
 * @author shishuqian
 * date 2021/3/24
 * time 17:43
 **/
@Controller
public class AccountController {

    @GetMapping("/{url}")
    public String redirect(@PathVariable("url") String url){
        return url;
    }

    @PostMapping("/login")
    public String login(String username, String password, Model model){
        Subject subject = SecurityUtils.getSubject();
        //把用户填写的信息封装为token
        UsernamePasswordToken token = new UsernamePasswordToken(username,password);

        try {
            subject.login(token);
            //登录成功,取出信息放到session里
            String name = token.getUsername();
            subject.getSession().setAttribute("name",name);
            return "index";
        } catch (UnknownAccountException e) {
            model.addAttribute("msg","用户名错误!");
            e.printStackTrace();
            return "login";
        } catch (IncorrectCredentialsException e) {
            model.addAttribute("msg","密码错误!");
            e.printStackTrace();
            return "login";
        }

    }

    @GetMapping("/unauth")
    @ResponseBody
    public String unauth(){
        return "未授权，无法访问!";
    }

    @GetMapping("/logout")
    public String logout(){
        Subject subject = SecurityUtils.getSubject();
        //销毁session
        subject.logout();
        return "login";
    }
}
